Emc Installation Guidelines - Raymarine HSB Chartplotter User Manual

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EMC Installation Guidelines

All Raytheon equipment and accessories are designed to the best
industry standards for use in the leisure marine environment.
Their design and manufacture conforms to the appropriate
Electromagnetic Compatibility (EMC) standards, but correct installation
is required to maintain EMC performance and CE compliance. Although
every effort has been taken to ensure that they will perform under all
conditions, it is important to understand what factors could affect the
operation of the product.
To avoid the risk of operating problems, all Raytheon equipment and
cables connected to it should be:
• At least 1m (3ft) from any equipment transmitting or cables carrying
radio signals e.g. VHF radios, cables and antennas. In the case of
SSB radios, the distance should be increased to 2m (7ft).
• More than 2m (7ft) from the path of a radar beam. A radar beam can
normally be assumed to spread 20 degrees above and below the
radiating element.
• The equipment should be supplied from a different battery than the
one used for engine start. Voltage drops below 10.7V in the power
supply to our products can cause the equipment to reset. This will not
damage the equipment, but will cause the loss of some information
and can change the mode of operation.
• Genuine Raytheon cables should be used at all times. Cutting and
rejoining these cables can compromise EMC performance and so
should be avoided unless doing so is detailed in this handbook.
• If a suppression ferrite is attached to a cable, this ferrite must not be
removed. If the ferrite has to be removed during installation it must be
reassembled in the same position.
The following illustration shows the range of suppression ferrites fitted to
Raytheon equipment.
HSB Series Chartplotter